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<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>
  <script>
    // 求两个数的和
    /* function getSum() {
      let num1 = +prompt('请输入第一个数：')
      let num2 = +prompt('请输入第二个数：')
      console.log(num1 + num2)
    }
    getSum() */

    // 1-100之间所有数的和
    function getSum() {
      let sum = 0
      for (let i = 1; i <= 100; i++) {
        sum += i
      }
      console.log(sum)
    }
    getSum()
  </script>
</body>
</html>